Wrench



J. McLEAN.

(Model.)'

WRENCH.

No. 325,001. Patented Aug. 25, 1885.

Faye.

INVBNTOR:

WITNESSES 42. 6 2

ATTORNEYS.

r. Wnhin mn, D. 0.

UNTTED STATES PATENT OFFICE,

JOHN MOLEAN, OF CAMDEJ, ALABAMA.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 325,001, dated August25, 1885.

(ModclJ To all whom it may concern.-

Be it known that 1, JOHN MoLEAN, of Camden, in the county of \Vilcox andState of Alabama, have invented a new and Improved \Vrench, of which thefollowing is ai'ull, clear, and exact description.

My invention relates to wrenches and has for its object to renderimplements of this class more convenient to use in situations wherelittle room is afforded for access to nuts, bolts, or other workrequiring to be turned or held, the implement being simple, inexpensive,and durable.

The invention consists in particular con structions and combinations ofparts of the wrench, all as hereinafter fully described and claimed.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in both the figures.

Figure 1 is a side elevation of myimproved wrench with the stock orhandle partly broken away and in section, and Fig. 2 is an edge view ofthe wrench.

The letter A indicates the stock or handle of the wrench, on which thefixed jaw B is formed, and the movable jaw Chas an aperture at c, toreceive the heavy pin or stud 1), formed on or fixed to the stock, andat its lower or back end thejaw Chas a -shapedlug, E, which fits arecess, F, formed in the stock parallel with the pin D, so that themovable jaw will be guided on pin D and in recess F as it may be movedtoward or from the fixed jaw B.

For moving the jaw C, I employa screw, G, which is fitted to a threadedhole in the jaw, and carries on a squared or flattened portion, 9, thebevel gear-wheel or pinion H, and the rounded end portion of the screwhas a bearing in a smooth hole in the stock, and has fixed to itsextremity a collar or washer, I, which enters a recess in the edge ofthe stock, and may, if preferred, be covered bya slide, J, fitted in adovetailed or undercut groove formed across the face of the stock. Thusarranged, the screw G may be rotated by turning the pinion H, but cannotbe moved endwise.

In a longitudinal bore, it, in the stock A is fitted a shaft, K, whichcarries fixedly at its inner end a bevel-pinion, L,which meshes with thepinion H, and at its other end or at the heel of the stock A the shaftcarries rigidly the crosshead or handle M, by which the shaft may beturned opposite ways for rotating the screw G in opposite directions toset the movable j aw O nearer to or farther from the fixed jaw B,toaccommodate the size of the nut, rod, or other work on which it isdesired to use the wrench.

The stock A, next the jaw B, is cut away, as at b, to receive the pinionH, and the aw O is recessed at c, to give space for the pnnon L when thejaw G is moved close up to or near the jaw B.

It is evident that this wrench may be used to advantage where it wouldbe very awkward or inconvenient or impossible to use wrenches orordinary constructionas, for instance, in turning on or ofl" nuts incavities or recesses of the work, the extreme ends of the jaws may beadjusted to and tightened on the nut by turning the handle M, and thenby turning the wrench bodily as you would a screw-driver the nut may bemoved in or out on its bolt, as required.

Another obvious advantage of the wrench is, the ease with which the jaws are set to the work by turning the handle M at the heel of thestock,which greatly enhances the value of the tool by permitting a tighthold to be taken on sunken nuts or work which it would be impossible tosecure by wrenches adj ustable by other means, and the wrench may alsobe used as a handvise for holding a large variety of work.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. A wrench comprising astoek, a fixed jaw, B, amovable jaw, G, a screw, G, operating to shift jaw O, and carrying abevel-pinion, H, a bevel-pinion, L, meshing with pinion H, and fixed toa shaft, K, fitted in the stock and adapted to be operated at the end orheel of the stock for shifting the movable jaw, substantially as hereinshown and described.

2. The combination, in awrench,of the stock A, provided with a fixed jaw, B, a movable j aw, G, a screw, G, for shifting theinovablejaw,and

carrying a bevelpini0n, H, a bevel-pinion, L, I fitted to pin D, and bya -head in slot F, and

meshing with pinion H andv fixed to a shaft, a screw, G, pinions H L,shaft K, and handle 10 K, fitted to the stock, and a handle, M, fixed M,substantially as herein set forth.

to shaftK at the heel of the stock snbstan- 1 T tially as herein setforth. 7 JOHN MQLDAN 3. The combination, in a Wrench, of the \Vitnesses:

stock A, provided with afixed jaw, B, apin or I DAVID T. MOMILLAN, stud,D, and a gnide slot, F, a movz'thlejaw, C,

SAML. l). MOORE.

